A method to extend the spectral iteration technique

Bokhari, S. ; Balakrishnan, N. (1986) A method to extend the spectral iteration technique IEEE Transactions on Antennas and Propagation, 34 (1). pp. 51-57. ISSN 0018-926X

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Related URL: http://dx.doi.org/10.1109/TAP.1986.1143730


A method has been developed to extend the spectral iteration technique to encompass a more general class of subdomain type basis functions. While retaining the advantages of the spectral iteration technique, this method enables the usage of basis functions other than piecewise constant basis functions in expressing the unknown current distribution. Advantages of this technique with the choice of piecewise sinusoidal basis functions as compared to piecewise constant basis functions have been demonstrated for both antenna and scattering problems. This choice of basis functions is found to result in a further reduction in the number of unknowns required to represent the current distribution. Numerical results of the input impedance for a cylindrical antenna and the scattering cross section of a thin fiat plate are presented and discussed.

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